Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phoi thai vo snippets" » "phoi tai vo snippets", "pho thai vo snippets", "phong thai vo snippets", "phoi thai do snippets", "phoi thai o snippets", "phoi thai va snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phoi thai vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phoi thai vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phoi thai vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phoi thai vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.